Base Difficulty

Base difficulty: Level 13 edit

Level distribution for noun (emotion_feeling): 9: 7 13: 4 100: 10 303: 16 390: 1 450: 1 1030: 1 1060: 1 1070: 1 1120: 1 1399: 11

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 3860 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cefr A1 (1 of 6) 800

Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 75.73 329 20% 1378 downrated 2
20th_books 52.20 456 20% 1965 downrated 2
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 0.00 — — — 0
wiki_arts 6.74 3929 20% 10000 capped 1
wiki_society 12.20 2290 20% 11000 capped 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 10.54 2593 20% 9000 capped 1
early_modern_science 29.07 969 20% 3842 downrated 2
religious_translated 49.27 489 20% 2127 downrated 2
cooking 5.41 2568 20% 5200 capped 1
legal_scotus 6.92 3708 20% 12689 downrated 2
eu_parliament_debates 154.21 174 20% 809 downrated 2
openstax_science 4.40 4771 20% 11000 capped 1
openstax_society 19.58 2176 20% 6667 downrated 2
wpa_life_histories 27.09 903 20% 3501 downrated 2

Best form = the single best-ranked form in the corpus, share-blind — how the spelling itself ranked. Share = how much of that spelling belongs to this lemma, when several senses compete for it. Zipf rank = all the forms combined (variant spellings included), each scaled by its share, and what feeds the combined frequency rank. Combining forms improves on the best form, but a share below 100% pushes the other way and usually wins: a sense holding a small slice of a common spelling is a rare word, so its rank lands downrated below the best form — and once it falls past what the corpus can support it is capped at the rank an unlisted word would get.